Camera optical lens

ABSTRACT

Disclosed is a camera optical lens, comprising, from an object side to an image side in sequence: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a negative refractive pwer; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power; wherein, the camera optical lens satisfies: −2.50≤f2/f≤−1.20; 3.50≤(R5+R6)/(R5−R6)≤12.00; 4.00≤R10/R9; and 0.50≤d5/d6≤1.20; where, f denotes a focus length of the camera optical lens; f2 denotes a focus length of the second lens; R5 and R6 denote central curvature radii of an object side surface and an image side of the third lens; R9 and R10 denotes central curvature radii of an object side surface and an image side of the fifth lens.

TECHNICAL FIELD

The present disclosure generally relates to optical lens, in particularto a camera optical lens suitable for handheld terminals, such as smartphones and digital cameras, and imaging devices, such as monitors and PClens.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor). As the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, and with the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lens with good imaging quality therefore have become a mainstreamin the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a three-piece,four-piece or even five-piece lens structure. While, with thedevelopment of technology and the increase of the diverse demands ofusers, and as the pixel area of photosensitive device is becomingsmaller and smaller and the requirement of the system on the imagingquality is improving constantly, the six-piece lens structure graduallyappears in lens design. The six-piece lens has good optical performance,but the design on focal power, lens spacing and lens shape is notreasonable, thus the lens structure could not meet the designrequirements for having ultra-thinness, a wide angle and a largeaperture while having good optical performance.

Therefore, it is necessary to provide a camera lens which meets thedesign requirements for having ultra-thinness, a wide angle and a largeaperture while having good optical performance.

SUMMARY

Some embodiments of the present disclosure provide a camera opticallens, comprising six lenses in total, the six lenses are, from an objectside to an image side in sequence: a first lens having a positiverefractive power; a second lens having a negative refractive power; athird lens having a negative refractive power; a fourth lens having anegative refractive power; a fifth lens having a positive refractivepower; and a sixth lens having a negative refractive power; where, thecamera optical lens satisfies the following conditions:−2.50≤f2/f≤−1.20; 3.50≤(R5+R6)/(R5−R6)≤12.00; 4.00≤R10/R9; and0.50≤d5/d6≤1.20; where, f denotes a focus length of the camera opticallens; f2 denotes a focus length of the second lens; R5 denotes a centralcurvature radius of an object side surface of the third lens; R6 denotesa central curvature radius of an image side surface of the third lens;R9 denotes a central curvature radius of an object side surface of thefifth lens; R10 denotes a central curvature radius of an image sidesurface of the fifth lens; d5 denotes an on-axis thickness of the thirdlens; and d6 denotes an on-axis distance from the image side surface ofthe third lens to an object side surface of the fourth lens.

As an improvement, the camera optical lens further satisfies thefollowing conditions: −15.00≤f4/f≤−5.00; where, f4 denotes a focuslength of the fourth lens.

As an improvement, the camera optical lens satisfies the followingconditions: 0.35≤f1/f≤1.35; −3.57≤(R1+R2)/(R1−R2)≤−0.70; and0.06≤d1/TTL≤0.21; where, f1 denotes a focus length of the first lens; R1denotes a central curvature radius of an object side surface of thefirst lens; R2 denotes a central curvature radius of an image sidesurface of the first lens; d1 denotes an on-axis thickness of the firstlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.

As an improvement, the camera optical lens further satisfies thefollowing conditions: 1.00≤(R3+R4)/(R3−R4)≤4.54; and 0.01≤d3/TTL≤0.06;where, R3 denotes a central curvature radius of an object side surfaceof the second lens; R4 denotes a central curvature radius of an imageside surface of the second lens; d3 denotes an on-axis thickness of thesecond lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.

As an improvement, the camera optical lens satisfies the followingconditions: −101.48≤f3/f≤−16.13; and 0.02≤d5/TTL≤0.09; where, f3 denotesa focus length of the third lens; and TTL denotes a total optical lengthfrom an object side surface of the first lens to an image surface of thecamera optical lens along an optical axis.

As an improvement, the camera optical lens satisfies the followingconditions: −3.89≤(R7+R8)/(R7−R8)≤0.21; and 0.05≤d7/TTL≤0.15; where, R7denotes a central curvature radius of the object side surface of thefourth lens; R8 denotes a central curvature radius of an image sidesurface of the fourth lens; d7 denotes an on-axis thickness of thefourth lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.

As an improvement, the camera optical lens satisfies the followingconditions: 0.54≤f5/f≤2.00; −3.33≤(R9+R10)/(R9−R10)≤−0.72; and0.03≤d9/TTL≤0.14; where, f5 denotes a focus length of the fifth lens; d9denotes an on-axis thickness of the fifth lens; and TTL denotes a totaloptical length from an object side surface of the first lens to an imagesurface of the camera optical lens along an optical axis.

As an improvement, the camera optical lens satisfies the followingconditions: −1.92≤f6/f≤−0.55; 0.78≤(R11+R12)/(R11−R12)≤2.85; and0.05≤d11/TTL≤0.15; where, f6 denotes a focus length of the sixth lens;R11 denotes a central curvature radius of an object side surface of thesixth lens; R12 denotes a central curvature radius of an image sidesurface of the sixth lens; d11 denotes an on-axis thickness of the sixthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.

As an improvement, the camera optical lens satisfies the followingconditions: TTL/IH≤1.33; where, IH denotes an image height of the cameraoptical lens; and TTL denotes a total optical length from an object sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.

As an improvement, the camera optical lens satisfies the followingconditions: FOV≥81.00°; where, FOV denotes a field of view of the cameraoptical lens.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of thepresent disclosure more clearly, the drawings to be used for describingthe embodiments will be described briefly in the following. Apparently,the drawings in the following are only for facilitating the descriptionof the embodiments, for those skilled in the art, other drawings may beobtained from the accompanying drawings without creative work.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1 ;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1 ;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1 ;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5 ;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5 ;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5 ;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9 ;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9 ;

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9 .

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

To make the objects, technical solutions, and advantages of the presentdisclosure clearer, the embodiments of the present disclosure aredescribed in detail with reference to the accompanying drawings asfollows. A person of ordinary skill in the related art would understandthat, in the embodiments of the present disclosure, many technicaldetails are provided to make readers better understand this application.However, the technical solutions sought to be protected by thisapplication could be implemented, even without these technical detailsand any changes and modifications based on the following embodiments.

Embodiment 1

As shown in the accompanying drawings, the present disclosure provides acamera optical lens 10. FIG. 1 shows the camera optical lens 10 ofEmbodiment 1 of the present disclosure, and the camera optical lens 10comprises six lenses in total. Specifically, in FIG. 1 , the left sideshows an object side of the camera optical lens 10, and the right sideshows an image side of the camera optical lens 10, and the cameraoptical lens 10 comprises in sequence from an object side to an imageside: an aperture S1, a first lens L1, a second lens L2, a third lensL3, a fourth lens L4, a fifth lens L5 and a six lens L6. An opticalelement such as an optical filter GF may be arranged between the sixlens L6 and an image surface Si.

In this embodiment, the first lens L1 has a positive refractive power,the second lens L2 has a negative refractive power, the third lens L3has a negative refractive power, the fourth lens L4 has a negativerefractive power, the fifth lens has a positive refractive power and thesixth lens L6 has a negative refractive power.

In this embodiment, the first lens L1, the second lens L2, the thirdlens L3, the fourth lens L4, the fifth lens L5 and the six lens L6 areall made of plastic material. In some embodiments, the lenses may alsobe made of other materials.

In this embodiment, a focal length of the camera optical lens 10 isdefined as f, a focal length of the second lens L2 is defined as f2. Thecamera optical lens 10 satisfies a condition of −2.50≤f2/f≤−1.20, whichspecifies a ratio between the focal length f2 of the second lens L2 andthe focal length f of the camera optical lens 10. When the abovecondition is satisfied, the spherical abbreviation and field curvatureof the system can be effectively balanced.

A central curvature radius of an object side surface of the third lensL3 is defined as R5, and a central curvature radius of an image sidesurface of the third lens L3 is defined as R6. The camera optical lens10 satisfies a condition of 3.50≤(R5+R6)/(R5R6)≤12.00, which specifies ashape of the third lens L3. When the above condition is satisfied, thedegree of light deflection when passing through the lens may be reduced,and thus the aberration is effectively reduced. A central curvatureradius of an object side surface of the fifth lens L5 is defined as R9,and a central curvature radius of an image side surface of the fifthlens L5 is defined as R10. The camera optical lens 10 satisfies acondition of 4.00≤R10/R9, which specifies the shape of the fifth lensL5. When the above condition is satisfied, it is beneficial forcorrecting aberration of the off-axis picture angle.

An on-axis thickness of the third lens L3 is defined as d5, and anon-axis distance from the image side surface of the third lens L3 to anobject side surface of the fourth lens L4 is defined as d6. The cameraoptical lens 10 satisfies a condition of 0.50≤d5/d6≤1.20, whichspecifies a ratio between the on-axis thickness d5 of the third lens L3and the on-axis distance d6 from the image side surface of the thirdlens L3 to the object side surface of the fourth lens L4. When the abovecondition is satisfied, it is beneficial for reducing the total opticallength, and thus realizing ultra-thinness.

A focal length of the fourth lens L4 is defined as f4, and the cameraoptical lens 10 satisfies a condition of −15.00≤f4/f≤−5.00, whichspecifies a ratio between the focal length f4 of the fourth lens L4 andthe focal length f of the camera optical lens 10. By reasonablydistributing the focal power, the system obtains better imaging qualityand lower sensitivity

In this embodiment, an object side surface of the first lens L1 isconvex in a paraxial region, and an image side surface of the first lensL1 is concave in the paraxial region.

A focal length of the first lens L1 is defined as f1 and the cameraoptical lens 10 satisfies a condition of 0.35≤f1/f≤1.35, which specifiesa ratio between the focal length f1 of the first lens L1 and the focallength of the camera optical lens 10. With the development towardslenses with ultra-thinness and a wide angle, it is beneficial forreducing system abbreviation when the first lens L1 has an appropriatepositive focal power. Preferably, the camera optical lens 10 furthersatisfies a condition of 0.56≤f1/f≤1.08.

A central curvature radius of the object side surface of the first lensL1 is defined as R1, and a central curvature radius of the image sidesurface of the first lens L1 is defined as R2. The camera optical lens10 satisfies a condition of −3.57≤(R1+R2)/(R1−R2)≤−0.70, thus the shapeof the first lens L1 is reasonably controlled, so that the first lens L1may effectively correct system spherical aberration. Preferably, thecamera optical lens 10 further satisfies a condition of−2.23≤(R1+R2)/(R1−R2)≤−0.88.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length from an object side surface of the first lens L1 to animage surface Si of the camera optical lens 10 along an optical axis isdefined as TTL. The camera optical lens 10 satisfies a condition of0.06≤d1/TTL≤0.21, thus the shape of the first lens is reasonablycontrolled, which is beneficial for realization of ultra-thin lenses.Preferably, the camera optical lens 10 further satisfies a condition of0.10≤d1/TTL≤0.16.

In this embodiment, an object side surface of the second lens L2 isconvex in a paraxial region, and an image side surface of the secondlens L2 is concave in the paraxial region.

A central curvature radius of the object side surface of the second lensL2 is defined as R3, and a central curvature radius of the image sidesurface of the second lens L2 is defined as R4. The camera optical lens10 satisfies a condition of 1.00≤(R3+R4)/(R3−R4)≤4.54, which specifies ashape of the second lens L2. With the development towards lenses withlenses with ultra-thinness and a wide angle, it is beneficial forcorrecting an off-axis picture angle, when the above condition issatisfied. Preferably, the camera optical lens 10 further satisfies acondition of 1.59≤(R3+R4)/(R3−R4)≤3.63.

An on-axis thickness of the second lens L2 is defined as d3, and thetotal optical length from an object side surface of the first lens L1 toan image surface Si of the camera optical lens 10 along an optical axisis defined as TTL. The camera optical lens 10 satisfies a condition of0.01≤d3/TTL≤0.06. When the above condition is satisfied, it isbeneficial for realization of ultra-thin lenses. Preferably, the cameraoptical lens 10 further satisfies a condition of 0.02≤d3/TTL≤0.05.

In this embodiment, the object side surface of the third lens L3 isconvex in a paraxial region, and the image side surface of the thirdlens L3 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f and afocal length of the third lens L3 is defined as f3. The camera opticallens 10 satisfies a condition of −101.48≤f3/f≤−16.13. By reasonablydistributing the focal power, the system has good imaging quality andlower sensitivity. Preferably, the camera optical lens 10 furthersatisfies a condition of −63.43≤f3/f≤−20.17.

An on-axis thickness of the third lens L3 is defined as d5, and thetotal optical length from an object side surface of the first lens L1 toan image surface Si of the camera optical lens 10 along an optical axisis defined as TTL. The camera optical lens 10 satisfies a condition of0.02≤d5/TTL≤0.09. When the above condition is satisfied, it isbeneficial for realization of ultra-thin lenses. Preferably, the cameraoptical lens 10 further satisfies a condition of 0.03≤d5/TTL≤0.07.

In this embodiment, the object side surface of the fourth lens L4 isconcave in a paraxial region and an image side surface of the fourthlens L4 is convex in the paraxial region.

A central curvature radius of the object side surface of the fourth lensL4 is defined as R7, and a central curvature radius of the image sidesurface of the fourth lens L4 is defined as R8. The camera optical lens10 satisfies a condition of −3.89≤(R7+R8)/(R7−R8)≤0.21, which specifiesa shape of the fourth lens L4. With the development towards wide-anglelenses, it is beneficial for correcting aberration of the off-axispicture angle when the above condition is satisfied. Preferably, thecamera optical lens 10 further satisfies a condition of−2.43≤(R7+R8)/(R7−R8)≤0.17.

A central on-axis thickness of the fourth lens L4 satisfies is definedas d7, and the total optical length from an object side surface of thefirst lens L1 to an image surface Si of the camera optical lens 10 alongan optical axis is defined as TTL. The camera optical lens 10 satisfiesa condition of 0.05≤d7/TTL≤0.15. When the above condition is satisfied,it is beneficial for the realization of ultra-thin lenses. Preferably,the camera optical lens 10 further satisfies a condition of0.08≤d7/TTL≤0.12.

In this embodiment, the object side surface of the fifth lens L5 isconvex in a paraxial region, and the image side surface of the fifthlens L5 is concave in the paraxial region.

The focal length of the camera optical lens 10 is defined as f and afocal length of the fifth lens L5 is defined as f5. The camera opticallens 10 satisfies a condition of 0.54≤f5/f≤2.00. The limitation on thefifth lens L5 may effectively flatten the light angle of the cameraoptical lens, and reduce tolerance sensitivity. Preferably, the cameraoptical lens 10 further satisfies a condition of 0.86≤f5/f≤1.60.

A central curvature radius of the object side surface of the fifth lensL5 is defined as R9, and a central curvature radius of the image sidesurface of the fifth lens L5 is defined as R10. The camera optical lens10 satisfies a condition of −3.33≤(R9+R10)/(R9−R10)≤−0.72, whichspecifies the shape of the fifth lens L5. With the development towardslenses with a wide angle, it is beneficial for solving a problem likechromatic aberration of the off-axis picture angle, when the abovecondition is satisfied. Preferably, the camera optical lens 10 furthersatisfies a condition of −2.08≤(R9+R10)/(R9−R10)≤−0.89.

An on-axis thickness of the fifth lens L5 is defined as d9, and thetotal optical length from an object side surface of the first lens L1 toan image surface Si of the camera optical lens 10 along an optical axisis defined as TTL. The camera optical lens 10 satisfies a condition of0.03≤d9/TTL≤0.14. It is beneficial for realization of ultra-thin lenseswhen the above condition is satisfied. Preferably, the camera opticallens 10 further satisfies a condition of 0.05≤d9/TTL≤0.11.

In this embodiment, an object side surface of the sixth lens L6 isconvex in a paraxial region, and an image side surface of the sixth lensL6 is concave in the paraxial region. It shall be understood that inother embodiments, the object side surfaces and the image side surfacesof the first lens L1, the second lens L2, the third lens L3, the fourthlens L4, the fifth lens L5 and the six lens L6 may be provided as havingconvex or concave shapes other than those described above.

The focal length of the camera optical lens 10 is defined as f and afocal length of the sixth lens L6 is defined as f6. The camera opticallens 10 satisfies a condition of −1.92≤f6/f≤−0.55. The camera opticallens 10 has better imaging quality and lower sensitivity by reasonablydistributing the focal power. Preferably, the camera optical lens 10further satisfies a condition of −1.20≤f6/f≤−0.69.

A central curvature radius of the object side surface of the sixth lensL6 is defined as R11, and a central curvature radius of the image sidesurface of the sixth lens L6 is defined as R12. The camera optical lens10 satisfies a condition of 0.78≤(R11+R12)/(R11−R12)≤2.85, whichspecifies the shape of the sixth lens L6. With the development towardsultra-thin and wide-angle lenses, it is beneficial for solving a problemlike chromatic aberration of the off-axis picture angle, when the abovecondition is satisfied. Preferably, the camera optical lens 10 furthersatisfies a condition of 1.25≤(R11+R12)/(R11−R12)≤2.28.

An on-axis thickness of the sixth lens L6 is defined as d11, and thetotal optical length from an object side surface of the first lens L1 toan image surface Si of the camera optical lens 10 along an optical axisis defined as TTL. The camera optical lens 10 satisfies a condition of0.05≤d11/TTL≤0.15. It is beneficial for realization of ultra-thin lenseswhen the above condition is satisfied. Preferably, the camera opticallens 10 further satisfies a condition of 0.07≤d11/TTL≤0.12.

In this embodiment, an image height of the camera optical lens 10 isdefined as IH, and the total optical length of the camera optical lensis defined as TTL. The camera optical lens 10 satisfies a condition ofTTL/IH≤1.33, which is beneficial for realization of ultra-thin lenses.

In this embodiment, a field of view FOV of the camera optical lens 10 isdefined as FOV. The camera optical lens 10 satisfies a condition ofFOV≥81.00°, which is beneficial for realization of a wide angle.

In this embodiment, an aperture value of the camera optical lens 10 isdefined as FNO The camera optical lens 10 satisfies a condition ofFNO≤1.90, which is beneficial for realization of a large aperture.

When the above conditions are satisfied, the camera optical lens 10 hasan ultra-thinness, a wide angle and a large aperture while having goodoptical performance; and with such properties, the camera optical lens10 is particularly suitable for a mobile camera lens assembly and a WEBcamera lens that have CCD, CMOS and other imaging elements with highpixels.

In the following, an example will be taken to describe the cameraoptical lens 10 of the present disclosure. The symbols recorded in eachexample are as follows. The unit of the focal length, the on-axisdistance, the curvature radius, the on-axis thickness, an inflexionpoint position and an arrest point position is mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens L1 to the image surface Si) in mm.

Aperture value FNO: ratio of an effective focal length of the cameraoptical lens 10 to an entrance pupil diameter.

Preferably, inflexion points and/or arrest points may be arranged on theobject side surface and/or image side surface of the lens, so as tosatisfy the demand for high quality imaging. The description below maybe referred to for specific implementations.

The design information of the camera optical lens 10 in Embodiment 1 ofthe present disclosure is shown in Tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0 = −0.633 R1 2.246 d1 = 0.870 nd1 1.5444 v155.82 R2 11.460 d2 = 0.066 R3 7.749 d3 = 0.300 nd2 1.6700 v2 19.39 R43.901 d4 = 0.467 R5 32.016 d5 = 0.302 nd3 1.6610 v3 20.53 R6 23.936 d6 =0.462 R7 −22.624 d7 = 0.686 nd4 1.5444 v4 55.82 R8 −70.404 d8 = 0.467 R93.624 d9 = 0.648 nd5 1.5346 v5 55.69 R10 102.359 d10 = 0.904 R11 9.133d11 = 0.688 nd6 1.5346 v6 55.69 R12 1.993 d12 = 0.500 R13 ∞ d13 = 0.210ndg 1.5168 vg 64.17 R14 ∞ d14 = 0.412

In the table, meanings of various symbols will be described as follows.

S1: Aperture;

R: curvature radius at a center of an optical surface;

R1: central curvature radius of the object side surface of the firstlens L1;

R2: central curvature radius of the image side surface of the first lensL1;

R3: central curvature radius of the object side surface of the secondlens L2;

R4: central curvature radius of the image side surface of the secondlens L2;

R5: central curvature radius of the object side surface of the thirdlens L3;

R6: central curvature radius of the image side surface of the third lensL3;

R7: central curvature radius of the object side surface of the fourthlens L4;

R8: central curvature radius of the image side surface of the fourthlens L4;

R9: central curvature radius of the object side surface of the fifthlens L5;

R10: central curvature radius of the image side surface of the fifthlens L5;

R11: central curvature radius of the object side surface of the sixthlens L6;

R12: central curvature radius of the image side surface of the sixthlens L6;

R13: central curvature radius of an object side surface of the opticalfilter GF;

R14: central curvature radius of an image side surface of the opticalfilter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from the image side surface of the optical filterGF to the image surface Si;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10A12 R1 −1.2970E−01  5.1026E−03 −1.2528E−02   3.7348E−02 −5.3561E−024.3674E−02 R2  3.4503E+01 −1.0431E−02 6.0865E−03  1.1337E−02 −2.7515E−023.1395E−02 R3  1.1096E+01 −1.4738E−02 −6.6780E−04   6.7782E−02−1.4411E−01 1.7182E−01 R4  5.3184E+00 −1.2645E−02 −1.7699E−02  1.1355E−01 −2.6665E−01 3.7163E−01 R5 −1.2821E+02 −4.5268E−02 3.8098E−02−9.5143E−02  1.2173E−01 −6.0289E−02  R6  1.5616E+02 −4.4233E−024.9967E−02 −1.2310E−01  1.9688E−01 −1.9583E−01  R7 −1.9048E+02−4.3803E−02 1.2207E−02 −1.8602E−02  2.7891E−02 −2.6619E−02  R8 6.7286E+01 −7.1029E−02 1.5559E−02 −7.0534E−04 −6.0925E−03 5.9158E−03 R9 3.8034E−01 −3.6970E−02 1.0837E−03  3.6694E−03 −2.8472E−03 9.6290E−04R10 −9.6406E+01 −8.7424E−03 2.7747E−04  2.2933E−03 −1.4061E−033.4776E−04 R11 −1.5578E+02 −1.2061E−01 3.5661E−02 −6.1285E−03 7.6743E−04 −7.2022E−05  R12 −8.5424E+00 −4.8499E−02 1.3023E−02−2.4449E−03  3.1549E−04 −2.7517E−05  Conic coefficient Asphericalsurface coefficients k A14 A16 A18 A20 R1 −1.2970E−01 −2.0618E−025.3837E−03 −6.6020E−04 2.0307E−05 R2  3.4503E+01 −2.1876E−02 9.2591E−03−2.1793E−03 2.1585E−04 R3  1.1096E+01 −1.2604E−01 5.6203E−02 −1.3950E−021.4749E−03 R4  5.3184E+00 −3.2090E−01 1.6842E−01 −4.9197E−02 6.1473E−03R5 −1.2821E+02 −2.9136E−02 5.3798E−02 −2.5978E−02 4.3990E−03 R6 1.5616E+02  1.2307E−01 −4.6793E−02   9.7676E−03 −8.5628E−04  R7−1.9048E+02  1.4952E−02 −4.6308E−03   7.3215E−04 −4.6277E−05  R8 6.7286E+01 −2.9671E−03 8.5448E−04 −1.2886E−04 7.7736E−06 R9  3.8034E−01−1.9775E−04 2.5656E−05 −1.8816E−06 5.8097E−08 R10 −9.6406E+01−4.5099E−05 3.2567E−06 −1.2451E−07 1.9703E−09 R11 −1.5578E+02 4.8244E−06 −2.1295E−07   5.4751E−09 −6.1653E−11  R12 −8.5424E+00 1.5644E−06 −5.4447E−08   1.0334E−09 −8.0131E−12 

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16, A18 andA20 are aspheric surface indexes.y=(x ² /R)/{1+[1−(k+1)(x ² /R ²)]^(1/2) }+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

Where, x denotes a vertical distance from a point on an aspheric curveto the optical axis, and y denotes a depth of the aspheric surface (avertical distance from a point on the aspheric surface having a distancex to the optical lens, to a tangent plane that tangents to a vertex onthe optical axis of the aspheric surface).

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in Embodiment 1 of thepresent disclosure. Where, P1R1 and P1R2 represent respectively theobject side surface and image side surface of the first lens L1, P2R1and P2R2 represent respectively the object side surface and image sidesurface of the second lens L2, P3R1 and P3R2 represent respectively theobject side surface and image side surface of the third lens L3, P4R1and P4R2 represent respectively the object side surface and image sidesurface of the fourth lens L4, P5R1 and P5R2 represent respectively theobject side surface and image side surface of the fifth lens L5; andP6R1 and P6R2 represent respectively the object side surface and imageside surface of the sixth lens L6. Data in the column named “inflexionpoint position” refers to vertical distances from the inflexion pointsarranged on each lens surface to the optic axis of the camera opticallens 10. The data in the column named “arrest point position” refers tothe vertical distances from the arrest points arranged on each lenssurface to the optic axis of the camera optical lens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion Inflexion inflexionpoint point point point points position 1 position 2 position 3 position4 P1R1 1 1.585 / / / P1R2 1 1.355 / / / P2R1 0 / / / / P2R2 0 / / / /P3R1 2 0.255 1.295 / / P3R2 2 0.325 1.155 / / P4R1 3 1.405 1.745 1.855 /P4R2 3 1.705 1.945 2.105 / P5R1 2 0.925 2.395 / / P5R2 3 0.315 2.6553.015 / P6R1 3 0.265 1.855 4.025 / P6R2 4 0.685 3.605 4.045 4.395

TABLE 4 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 1 0.445 /P3R2 2 0.565 1.395 P4R1 0 / / P4R2 0 / / P5R1 1 1.565 / P5R2 1 0.545 /P6R1 2 0.455 3.405 P6R2 1 1.595 /

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm and435 nm after passing the camera optical lens 10 according toEmbodiment 1. FIG. 4 illustrates the field curvature and distortion oflight with a wavelength of 546 nm after passing the camera optical lens10 according to Embodiment 1, the field curvature S in FIG. 4 is a fieldcurvature in the sagittal direction, T is a field curvature in ameridian direction.

The following Table 13 shows various values of Embodiments 1, 2, 3 andvalues corresponding to parameters which are already specified in theabove conditions.

As shown in Table 13, Embodiment 1 satisfies the various conditions.

In this embodiment, the entrance pupil diameter ENPD of the cameraoptical lens 10 is 3.133 mm, a full vision field image height IH is5.264 mm, a field of view FOV in a diagonal direction is 82.10°, thusthe camera optical lens 10 is ultra-thin and has a large aperture and awide-angle. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

FIG. 5 illustrates a camera optical lens 20 according to Embodiment 2 ofthe present disclosure. Embodiment 2 is basically the same as Embodiment1 and involves symbols having the same meanings as Embodiment 1, andonly differences will be described in the following.

In this embodiment, an image side surface of the fourth lens L4 isconcave in the paraxial region.

Table 5 and table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd vd S1 ∞ d0 = −0.663 R1 2.219 d1 = 0.877 nd1 1.5444 v155.82 R2 7.859 d2 = 0.102 R3 14.692 d3 = 0.300 nd2 1.6700 v2 19.39 R45.931 d4 = 0.441 R5 35.988 d5 = 0.300 nd3 1.6610 v3 20.53 R6 30.443 d6 =0.598 R7 −38.075 d7 = 0.666 nd4 1.5444 v4 55.82 R8 28.618 d8 = 0.289 R93.212 d9 = 0.590 nd5 1.5346 v5 55.69 R10 43.916 d10 = 1.037 R11 8.548d11 = 0.643 nd6 1.5346 v6 55.69 R12 2.041 d12 = 0.500 R13 ∞ d13 = 0.210ndg 1.5168 vg 64.17 R14 ∞ d14 = 0.427

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic Coefficient Aspheric Surface Indexes k A4 A6 A8 A10 A12 R1−6.8825E−02  2.1386E−03 2.6124E−03 −3.5460E−03  5.4403E−03 −5.0833E−03 R2  1.2044E+01 −2.5957E−02 1.4995E−02 −1.8095E−03 −3.1291E−03 1.9167E−03R3  3.1590E+00 −2.8575E−02 3.2013E−02 −5.3238E−03 −1.3448E−02 1.7428E−02R4  9.1542E+00 −1.4319E−02 1.8485E−02  1.9925E−02 −7.7689E−02 1.2169E−01R5 −1.9900E+02 −5.3903E−02 1.3012E−02 −4.0163E−02  7.1620E−02−8.5407E−02  R6 −1.9900E+02 −4.3480E−02 7.6598E−03 −1.1827E−02 1.4287E−02 −1.0819E−02  R7  1.9512E+02 −2.7989E−02 6.2515E−03−5.8323E−03  5.4155E−03 −4.3777E−03  R8 −1.9900E+02 −6.7881E−028.3862E−03  6.3409E−03 −9.0333E−03 5.9009E−03 R9  2.6523E−01 −3.1834E−02−3.5574E−03   3.4489E−03 −2.5042E−03 9.7499E−04 R10  1.1765E+02 1.6123E−02 −7.1469E−03  −1.9121E−04  6.3956E−04 −2.4367E−04  R11−1.9732E+02 −8.5642E−02 1.1831E−02  1.2046E−03 −5.2019E−04 6.8292E−05R12 −8.0247E+00 −3.6636E−02 5.8302E−03 −5.3564E−04  1.6691E−052.0478E−06 Conic Coefficient Aspheric Surface Indexes k A14 A16 A18 A20R1 −6.8825E−02  3.1146E−03 −1.1902E−03   2.5900E−04 −2.4863E−05  R2 1.2044E+01  1.3691E−04 −6.0775E−04   2.5701E−04 −3.5347E−05  R3 3.1590E+00 −1.1279E−02 4.4190E−03 −9.8276E−04 9.9395E−05 R4  9.1542E+00−1.1466E−01 6.6141E−02 −2.1430E−02 3.0099E−03 R5 −1.9900E+02  6.4100E−02−2.8531E−02   6.8202E−03 −6.4520E−04  R6 −1.9900E+02  5.5790E−03−1.5195E−03   1.7136E−04 2.3303E−06 R7  1.9512E+02  2.1561E−035.4044E−04  6.2615E−05 −2.4990E−06  R8 −1.9900E+02 −2.3691E−035.7952E−04 −7.6763E−05 4.1579E−06 R9  2.6523E−01 −2.3978E−04 3.5278E−05−2.7075E−06 8.1837E−08 R10  1.1765E+02  4.9089E−05 −5.4413E−06  3.1163E−07 −7.1939E−09  R11 −1.9732E+02 −4.8884E−06 2.0431E−07−4.6980E−09 4.6082E−11 R12 −8.0247E+00 −2.7343E−07 1.4310E−08−3.6762E−10 3.8086E−12

Table 7 and table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 / / / P1R2 0 / / /P2R1 0 / / / P2R2 0 / / / P3R1 1 0.215 / / P3R2 2 0.255 1.255 / P4R1 11.575 / / P4R2 2 0.215 1.795 / P5R1 2 0.945 2.325 / P5R2 2 1.085 2.705 /P6R1 3 0.295 1.875 3.985 P6R2 3 0.735 3.315 4.125

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 / / P1R2 0 / / P2R1 0 / / P2R2 0 / / P3R1 1 0.365 /P3R2 1 0.435 / P4R1 0 / / P4R2 1 0.365 / P5R1 1 1.535 / P5R2 1 1.485 /P6R1 2 0.525 3.335 P6R2 1 1.615 /

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm and435 nm after passing the camera optical lens 20 according to Embodiment2. FIG. 8 illustrates a field curvature and a distortion of light with awavelength of 546 nm after passing the camera optical lens 20 accordingto Embodiment 2. The field curvature S in FIG. 8 is a field curvature ina sagittal direction, and T represents field curvature in meridiandirection.

As shown in Table 13, the camera optical lens 20 according to thisembodiment satisfies the above conditions.

In this embodiment, the entrance pupil diameter ENPD of the cameraoptical lens 20 is 3.134 mm. The full vision field image height IH is5.264 mm, the field of view FOV in the diagonal direction is 82.00°.Thus, the camera optical lens 20 is ultra-thin and has a wide-angle anda large aperture. Its on-axis and off-axis chromatic aberrations arefully corrected, thereby achieving excellent optical characteristics.

Embodiment 3

FIG. 9 illustrates a camera optical lens 30 of Embodiment 3 of thepresent disclosure. Embodiment 3 is basically the same as Embodiment 1and involves symbols having the same meanings as Embodiment 1, and onlydifferences will be described in the following.

In this embodiment, the image side surface of the fourth lens L4 isconcave in the paraxial region.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞ d0 = −0.648 R1 2.251 d1 = 0.959 nd1 1.5444 v155.82 R2 88.041 d2 = 0.068 R3 9.712 d3 = 0.200 nd2 1.6700 v2 19.39 R43.223 d4 = 0.430 R5 90.388 d5 = 0.404 nd3 1.6610 v3 20.53 R6 50.260 d6 =0.337 R7 −51.247 d7 = 0.705 nd4 1.5444 v4 55.82 R8 1184.306 d8 = 0.366R9 3.266 d9 = 0.413 nd5 1.5346 v5 55.69 R10 13.077 d10 = 1.361 R11 6.478d11 = 0.679 nd6 1.5346 v6 55.69 R12 2.015 d12 = 0.400 R13 ∞ d13 = 0.210ndg 1.5168 vg 64.17 R14 ∞ d14 = 0.450

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic Coefficient Aspheric Surface Indexes k A4 A6 A8 A10 A12R1 −1.2223E−01   2.1266E−03 −2.9644E−04   3.3445E−03 −5.0641E−034.7837E−03 R2 1.9900E+02  3.0243E−02 −2.3890E−02   2.3149E−02−1.8580E−02 1.1562E−02 R3 3.4147E+01  2.4152E−02 −2.6386E−02  3.8374E−02 −4.5635E−02 4.1885E−02 R4 4.3502E+00 −1.0615E−02 5.4707E−03−4.3489E−02  1.2161E−01 −1.9923E−01  R5 −5.4575E+01  −3.4277E−02−1.0355E−03   3.2317E−03 −2.0702E−02 3.7836E−02 R6 1.9900E+02−3.7077E−02 1.3776E−02 −2.3705E−02  2.2878E−02 −1.0443E−02  R7−1.9639E+02  −3.9642E−02 3.3768E−02 −5.3107E−02  5.7881E−02 −4.3709E−02 R8 1.9900E+02 −8.0682E−02 4.6991E−02 −3.3296E−02  1.7060E−02−5.9846E−03  R9 3.3528E−01 −6.9078E−02 2.1795E−02 −7.7376E−03−3.8218E−05 9.7465E−04 R10 1.8963E+01 −1.9774E−02 3.6061E−03 −1.4349E−04−9.4248E−04 3.9897E−04 R11 −8.9537E+01  −7.4081E−02 1.0931E−02  6.043IE−04 −3.5247E−04 4.7185E−05 R12 −7.3399E+00  −3.3444E−02 6.5922E−03−1.0226E−03  1.2844E−04 −1.2117E−05  Conic Coefficient Aspheric SurfaceIndexes k A14 A16 A18 A20 R1 −1.2223E−01  −2.7979E−03 1.0110E−03−2.0697E−04 1.8953E−05 R2 1.9900E+02 −5.3043E−03 1.7969E−03 −4.0158E−044.2757E−05 R3 3.4147E+01 −2.7224E−02 1.1788E−02 −3.0036E−03 3.3046E−04R4 4.3502E+00  1.9770E−01 −1.1832E−01   3.9453E−02 −5.6895E−03  R5−5.4575E+01  −3.5694E−02 1.9533E−02 −5.6302E−03 6.5047E−04 R6 1.9900E+02 3.3261E−04 2.5423E−03 −1.1695E−03 1.6248E−04 R7 −1.9639E+02  2.1558E−02 −6.3236E−03   9.9154E−04 −6.4100E−05  R8 1.9900E+02 1.2851E−03 −1.3222E−04   1.7773E−06 3.8885E−07 R9 3.3528E−01−3.9924E−04 7.8345E−05 −7.5393E−06 2.8244E−07 R10 1.8963E+01 −7.2670E−056.8800E−06 −3.3014E−07 6.2951E−09 R11 −8.9537E+01  −3.3377E−061.3550E−07 −2.9790E−09 2.7464E−11 R12 −7.3399E+00   7.8021E−07−3.1422E−08   7.0628E−10 −6.7466E−12 

Table 11 and table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 Position 3 P1R1 0 / / / P1R2 0 / / /P2R1 0 / / / P2R2 0 / / / P3R1 2 0.165 1.265 / P3R2 2 0.225 1.205 / P4R12 1.395 1.695 / P4R2 1 0.035 / / P5R1 2 0.775 2.155 / P5R2 2 0.645 2.285/ P6R1 3 0.365 1.915 4.075 P6R2 3 0.785 3.615 4.225

TABLE 12 Number of Arrest point Arrest point Arrest point arrest pointsposition 1 position 2 position 3 P1R1 0 / / / P1R2 0 / / / P2R1 0 / / /P2R2 0 / / / P3R1 1 0.285 / / P3R2 2 0.375 1.455 / P4R1 0 / / / P4R2 10.055 / / P5R1 1 1.345 / / P5R2 2 1.145 2.765 / P6R1 3 0.645 3.385 4.295P6R2 1 1.835 / /

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm and435 nm after passing the camera optical lens 30 according to Embodiment3. FIG. 12 illustrates field curvature and distortion of light with awavelength of 546 nm after passing the camera optical lens 30 accordingto Embodiment 3. The field curvature S in FIG. 12 is a field curvaturein a sagittal direction, and T represents field curvature in meridiandirection.

The following Table 13 shows values of the various conditions in theabove embodiments according to the above conditions. Obvious, the cameraoptical lens 30 according to this embodiment satisfies the variousconditions.

In this embodiment, a pupil entering diameter ENPD of the camera opticallens 30 is 3.154 mm, a full vision field image height is 5.264 mm, and avision field angle in the diagonal direction is 81.50°. Thus, the cameraoptical lens 30 is ultra-thin and has a wide-angle and a large aperture.Its on-axis and off-axis chromatic aberrations are fully corrected,thereby achieving excellent optical characteristics.

TABLE 13 Parameters and conditions Embodiment 1 Embodiment 2 Embodiment3 f2/f −2.01 −2.50 −1.20 (R5 + R6)/(R5 − R6) 6.92 11.98 3.50 R10/R928.24 13.67 4.00 d5/d6 0.65 0.50 1.20 f 5.952 5.953 5.992 f1 4.944 5.3614.208 f2 −11.963 −14.872 −7.203 f3 −144.027 −302.069 −170.022 f4 −61.287−29.778 −89.829 f5 6.982 6.421 7.991 f6 −4.914 −5.172 −5.752 f12 7.2717.474 7.819 FNO 1.90 1.90 1.90 TTL 6.982 6.980 6.982 IH 5.264 5.2645.264 FOV 82.10° 82.00° 81.50°

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising six lenses intotal, the six lenses are, from an object side to an image side insequence: a first lens having a positive refractive power; a second lenshaving a negative refractive power; a third lens having a negativerefractive power; a fourth lens having a negative refractive power; afifth lens having a positive refractive power; and a sixth lens having anegative refractive power; wherein, the camera optical lens satisfiesthe following conditions:−2.50≤f2/f≤−1.20;3.50≤(R5+R6)/(R5−R6)≤12.00;4.00≤R10/R9; and0.50≤d5/d6≤1.20; where, f denotes a focus length of the camera opticallens; f2 denotes a focus length of the second lens; R5 denotes a centralcurvature radius of an object side surface of the third lens; R6 denotesa central curvature radius of an image side surface of the third lens;R9 denotes a central curvature radius of an object side surface of thefifth lens; R10 denotes a central curvature radius of an image sidesurface of the fifth lens; d5 denotes an on-axis thickness of the thirdlens; and d6 denotes an on-axis distance from the image side surface ofthe third lens to an object side surface of the fourth lens.
 2. Thecamera optical lens according to claim 1, wherein, the camera opticallens further satisfies the following conditions:−15.00≤f4/f≤−5.00; where, f4 denotes a focus length of the fourth lens.3. The camera optical lens according to claim 1, wherein, the cameraoptical lens further satisfies the following conditions:0.35≤f1/f≤1.35;−3.57≤(R1+R2)/(R1−R2)≤−0.70; and0.06d1/TTL≤0.21; where, f1 denotes a focus length of the first lens; R1denotes a central curvature radius of an object side surface of thefirst lens; R2 denotes a central curvature radius of an image sidesurface of the first lens; d1 denotes an on-axis thickness of the firstlens; and TTL denotes a total optical length from the object sidesurface of the first lens to an image surface of the camera optical lensalong an optical axis.
 4. The camera optical lens according to claim 1,wherein, the camera optical lens further satisfies the followingconditions:1.00≤(R3+R4)/(R3−R4)≤4.54; and0.01≤d3/TTL≤0.06; where, R3 denotes a central curvature radius of anobject side surface of the second lens; R4 denotes a central curvatureradius of an image side surface of the second lens; d3 denotes anon-axis thickness of the second lens; and TTL denotes a total opticallength from an object side surface of the first lens to an image surfaceof the camera optical lens along an optical axis.
 5. The camera opticallens according to claim 1, wherein, the camera optical lens furthersatisfies the following conditions:−101.48≤f3/f≤−16.13; and0.02≤d5/TTL≤0.09; where, f3 denotes a focus length of the third lens;and TTL denotes a total optical length from an object side surface ofthe first lens to an image surface of the camera optical lens along anoptical axis.
 6. The camera optical lens according to claim 1, wherein,the camera optical lens further satisfies the following conditions:−3.89≤(R7+R8)/(R7−R8)≤0.21; and0.05≤d7/TTL≤0.15; where, R7 denotes a central curvature radius of theobject side surface of the fourth lens; R8 denotes a central curvatureradius of an image side surface of the fourth lens; d7 denotes anon-axis thickness of the fourth lens; and TTL denotes a total opticallength from an object side surface of the first lens to an image surfaceof the camera optical lens along an optical axis.
 7. The camera opticallens according to claim 1, wherein, the camera optical lens furthersatisfies the following conditions:0.54≤f5/f≤2.00;−3.33≤(R9+R10)/(R9−R10)≤−0.72; and0.03≤d9/TTL≤0.14; where, f5 denotes a focus length of the fifth lens; d9denotes an on-axis thickness of the fifth lens; and TTL denotes a totaloptical length from an object side surface of the first lens to an imagesurface of the camera optical lens along an optical axis.
 8. The cameraoptical lens according to claim 1, wherein, the camera optical lensfurther satisfies the following conditions:−1.92≤f6/f≤−0.55;0.78≤(R11+R12)/(R11−R12)≤2.85; and0.05≤d11/TTL≤0.15; where, f6 denotes a focus length of the sixth lens;R11 denotes a central curvature radius of an object side surface of thesixth lens; R12 denotes a central curvature radius of an image sidesurface of the sixth lens; d11 denotes an on-axis thickness of the sixthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.
 9. The camera optical lens according to claim 1,wherein the camera optical lens further satisfies the followingconditions:TTL/IH≤1.33; where, IH denotes an image height of the camera opticallens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image surface of the camera optical lens alongan optical axis.
 10. The camera optical lens according to claim 1,wherein the camera optical lens further satisfies the followingconditions:FOV≥81.00°; where, FOV denotes a field of view of the camera opticallens.